package jdbc;

import java.sql.Connection;
import java.sql.PreparedStatement;
import java.sql.ResultSet;
import java.sql.SQLException;

public class Test2 {
    public static void main(String[] args) {
        UserInfo userInfo=InputUtil.getInputObject(new UserInfo(),"欢迎删除","删除");
        try (
            Connection connection=DBUtil.getConnection();
        ){
            String sql="DELETE FROM userinfo WHERE username=? ";
            PreparedStatement ps=connection.prepareStatement(sql);
            ps.setString(1,userInfo.getUsername());

           int num= ps.executeUpdate();
            if (num>0){
                System.out.println("删除成功");
            }else{
                System.out.println("删除失败");
            }
        } catch (SQLException e) {
            throw new RuntimeException(e);
        }
    }
}
